转运游离脂肪酸的是()。
A.免疫球蛋白
B.肌红蛋白
C.O脂蛋白
D.铜兰蛋白
E.清(白)蛋白
参考答案:E
龈下锄形器在刮治根面时应注意()
A.刀刃置于袋底根面上
B.刀刃与根面成45°左右
C.刀刃与根面成85°
D.刀柄紧靠牙冠
E.要有两点接触
You didn't win the match _____ your team's finishing time was worse. [ ]
A. because of
B. because
C. though
D. as